Home / 129,416.04-178,593.75-72,827.40

Finding the Fourth Proportional to 129,416.04, 178,593.75 and 72,827.40

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Solution

The fourth proportional to 129,416.04, 178,593.75 and 72,827.40 is: 100,501.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,416.04 : 178,593.75 = 72,827.40 : x
  2. Step 2: Convert to fraction form
    129,416.04/178,593.75 = 72,827.40/x
  3. Step 3: Cross multiply
    129,416.04x = 178,593.75 × 72,827.40
  4. Step 4: Simplify right side
    129,416.04x = 13,006,518,468.75
  5. Step 5: Solve for x
    x = 13,006,518,468.75/129,416.04
  6. Step 6: Final answer
    x = 100,501.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.