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Finding the Fourth Proportional to 145,159.71, 217,683.59 and 56,401.53

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Solution

The fourth proportional to 145,159.71, 217,683.59 and 56,401.53 is: 84,580.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,159.71 : 217,683.59 = 56,401.53 : x
  2. Step 2: Convert to fraction form
    145,159.71/217,683.59 = 56,401.53/x
  3. Step 3: Cross multiply
    145,159.71x = 217,683.59 × 56,401.53
  4. Step 4: Simplify right side
    145,159.71x = 12,277,687,249.89
  5. Step 5: Solve for x
    x = 12,277,687,249.89/145,159.71
  6. Step 6: Final answer
    x = 84,580.54

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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.