Home / 145,158.13-217,762.71-66,280.33

Finding the Fourth Proportional to 145,158.13, 217,762.71 and 66,280.33

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Solution

The fourth proportional to 145,158.13, 217,762.71 and 66,280.33 is: 99,432.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,158.13 : 217,762.71 = 66,280.33 : x
  2. Step 2: Convert to fraction form
    145,158.13/217,762.71 = 66,280.33/x
  3. Step 3: Cross multiply
    145,158.13x = 217,762.71 × 66,280.33
  4. Step 4: Simplify right side
    145,158.13x = 14,433,384,280.49
  5. Step 5: Solve for x
    x = 14,433,384,280.49/145,158.13
  6. Step 6: Final answer
    x = 99,432.15

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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.