Home / 145,142.70-217,727.79-56,403.04

Finding the Fourth Proportional to 145,142.70, 217,727.79 and 56,403.04

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Solution

The fourth proportional to 145,142.70, 217,727.79 and 56,403.04 is: 84,609.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,142.70 : 217,727.79 = 56,403.04 : x
  2. Step 2: Convert to fraction form
    145,142.70/217,727.79 = 56,403.04/x
  3. Step 3: Cross multiply
    145,142.70x = 217,727.79 × 56,403.04
  4. Step 4: Simplify right side
    145,142.70x = 12,280,509,248.48
  5. Step 5: Solve for x
    x = 12,280,509,248.48/145,142.70
  6. Step 6: Final answer
    x = 84,609.90

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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.