Home / 156,320.18-215,722.04-84,700.18

Finding the Fourth Proportional to 156,320.18, 215,722.04 and 84,700.18

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Solution

The fourth proportional to 156,320.18, 215,722.04 and 84,700.18 is: 116,886.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,320.18 : 215,722.04 = 84,700.18 : x
  2. Step 2: Convert to fraction form
    156,320.18/215,722.04 = 84,700.18/x
  3. Step 3: Cross multiply
    156,320.18x = 215,722.04 × 84,700.18
  4. Step 4: Simplify right side
    156,320.18x = 18,271,695,617.97
  5. Step 5: Solve for x
    x = 18,271,695,617.97/156,320.18
  6. Step 6: Final answer
    x = 116,886.35

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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.