Home / 112,535.40-168,803.10-72,877.80

Finding the Fourth Proportional to 112,535.40, 168,803.10 and 72,877.80

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Solution

The fourth proportional to 112,535.40, 168,803.10 and 72,877.80 is: 109,316.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,535.40 : 168,803.10 = 72,877.80 : x
  2. Step 2: Convert to fraction form
    112,535.40/168,803.10 = 72,877.80/x
  3. Step 3: Cross multiply
    112,535.40x = 168,803.10 × 72,877.80
  4. Step 4: Simplify right side
    112,535.40x = 12,301,998,561.18
  5. Step 5: Solve for x
    x = 12,301,998,561.18/112,535.40
  6. Step 6: Final answer
    x = 109,316.70

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1.5x scale

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.