Home / 112,497.40-168,746.10-72,839.80

Finding the Fourth Proportional to 112,497.40, 168,746.10 and 72,839.80

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Solution

The fourth proportional to 112,497.40, 168,746.10 and 72,839.80 is: 109,259.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,497.40 : 168,746.10 = 72,839.80 : x
  2. Step 2: Convert to fraction form
    112,497.40/168,746.10 = 72,839.80/x
  3. Step 3: Cross multiply
    112,497.40x = 168,746.10 × 72,839.80
  4. Step 4: Simplify right side
    112,497.40x = 12,291,432,174.78
  5. Step 5: Solve for x
    x = 12,291,432,174.78/112,497.40
  6. Step 6: Final answer
    x = 109,259.70

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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.