Home / 145,027.98-217,516.02-92,280.78

Finding the Fourth Proportional to 145,027.98, 217,516.02 and 92,280.78

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Solution

The fourth proportional to 145,027.98, 217,516.02 and 92,280.78 is: 138,404.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,027.98 : 217,516.02 = 92,280.78 : x
  2. Step 2: Convert to fraction form
    145,027.98/217,516.02 = 92,280.78/x
  3. Step 3: Cross multiply
    145,027.98x = 217,516.02 × 92,280.78
  4. Step 4: Simplify right side
    145,027.98x = 20,072,547,988.10
  5. Step 5: Solve for x
    x = 20,072,547,988.10/145,027.98
  6. Step 6: Final answer
    x = 138,404.66

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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.