Home / 145,136.72-217,718.83-56,397.07

Finding the Fourth Proportional to 145,136.72, 217,718.83 and 56,397.07

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Solution

The fourth proportional to 145,136.72, 217,718.83 and 56,397.07 is: 84,600.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,136.72 : 217,718.83 = 56,397.07 : x
  2. Step 2: Convert to fraction form
    145,136.72/217,718.83 = 56,397.07/x
  3. Step 3: Cross multiply
    145,136.72x = 217,718.83 × 56,397.07
  4. Step 4: Simplify right side
    145,136.72x = 12,278,704,095.83
  5. Step 5: Solve for x
    x = 12,278,704,095.83/145,136.72
  6. Step 6: Final answer
    x = 84,600.95

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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.