Home / 208,125.50-287,214.09-112,632.20

Finding the Fourth Proportional to 208,125.50, 287,214.09 and 112,632.20

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Solution

The fourth proportional to 208,125.50, 287,214.09 and 112,632.20 is: 155,432.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,125.50 : 287,214.09 = 112,632.20 : x
  2. Step 2: Convert to fraction form
    208,125.50/287,214.09 = 112,632.20/x
  3. Step 3: Cross multiply
    208,125.50x = 287,214.09 × 112,632.20
  4. Step 4: Simplify right side
    208,125.50x = 32,349,553,391.63
  5. Step 5: Solve for x
    x = 32,349,553,391.63/208,125.50
  6. Step 6: Final answer
    x = 155,432.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.