Home / 112,657,043.40-168,985,565.10-72,346,259.40

Finding the Fourth Proportional to 112,657,043.40, 168,985,565.10 and 72,346,259.40

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Solution

The fourth proportional to 112,657,043.40, 168,985,565.10 and 72,346,259.40 is: 108,519,389.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,657,043.40 : 168,985,565.10 = 72,346,259.40 : x
  2. Step 2: Convert to fraction form
    112,657,043.40/168,985,565.10 = 72,346,259.40/x
  3. Step 3: Cross multiply
    112,657,043.40x = 168,985,565.10 × 72,346,259.40
  4. Step 4: Simplify right side
    112,657,043.40x = 12,225,473,527,580,188
  5. Step 5: Solve for x
    x = 12,225,473,527,580,188/112,657,043.40
  6. Step 6: Final answer
    x = 108,519,389.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.