Home / 208,135.04-287,227.20-112,641.68

Finding the Fourth Proportional to 208,135.04, 287,227.20 and 112,641.68

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Solution

The fourth proportional to 208,135.04, 287,227.20 and 112,641.68 is: 155,445.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,135.04 : 287,227.20 = 112,641.68 : x
  2. Step 2: Convert to fraction form
    208,135.04/287,227.20 = 112,641.68/x
  3. Step 3: Cross multiply
    208,135.04x = 287,227.20 × 112,641.68
  4. Step 4: Simplify right side
    208,135.04x = 32,353,754,349.70
  5. Step 5: Solve for x
    x = 32,353,754,349.70/208,135.04
  6. Step 6: Final answer
    x = 155,445.98

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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.