Home / 208,057.74-287,117.64-112,562.40

Finding the Fourth Proportional to 208,057.74, 287,117.64 and 112,562.40

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Solution

The fourth proportional to 208,057.74, 287,117.64 and 112,562.40 is: 155,335.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,057.74 : 287,117.64 = 112,562.40 : x
  2. Step 2: Convert to fraction form
    208,057.74/287,117.64 = 112,562.40/x
  3. Step 3: Cross multiply
    208,057.74x = 287,117.64 × 112,562.40
  4. Step 4: Simplify right side
    208,057.74x = 32,318,650,640.74
  5. Step 5: Solve for x
    x = 32,318,650,640.74/208,057.74
  6. Step 6: Final answer
    x = 155,335.01

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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.