Home / 156,345.72-215,756.55-84,727.50

Finding the Fourth Proportional to 156,345.72, 215,756.55 and 84,727.50

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Solution

The fourth proportional to 156,345.72, 215,756.55 and 84,727.50 is: 116,923.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,345.72 : 215,756.55 = 84,727.50 : x
  2. Step 2: Convert to fraction form
    156,345.72/215,756.55 = 84,727.50/x
  3. Step 3: Cross multiply
    156,345.72x = 215,756.55 × 84,727.50
  4. Step 4: Simplify right side
    156,345.72x = 18,280,513,090.13
  5. Step 5: Solve for x
    x = 18,280,513,090.13/156,345.72
  6. Step 6: Final answer
    x = 116,923.66

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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.