Home / 208,023.27-287,070.88-112,527.91

Finding the Fourth Proportional to 208,023.27, 287,070.88 and 112,527.91

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Solution

The fourth proportional to 208,023.27, 287,070.88 and 112,527.91 is: 155,287.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,023.27 : 287,070.88 = 112,527.91 : x
  2. Step 2: Convert to fraction form
    208,023.27/287,070.88 = 112,527.91/x
  3. Step 3: Cross multiply
    208,023.27x = 287,070.88 × 112,527.91
  4. Step 4: Simplify right side
    208,023.27x = 32,303,486,148.26
  5. Step 5: Solve for x
    x = 32,303,486,148.26/208,023.27
  6. Step 6: Final answer
    x = 155,287.85

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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.