Home / 208,358.16-287,535.65-112,864.86

Finding the Fourth Proportional to 208,358.16, 287,535.65 and 112,864.86

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Solution

The fourth proportional to 208,358.16, 287,535.65 and 112,864.86 is: 155,754.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,358.16 : 287,535.65 = 112,864.86 : x
  2. Step 2: Convert to fraction form
    208,358.16/287,535.65 = 112,864.86/x
  3. Step 3: Cross multiply
    208,358.16x = 287,535.65 × 112,864.86
  4. Step 4: Simplify right side
    208,358.16x = 32,452,670,317.93
  5. Step 5: Solve for x
    x = 32,452,670,317.93/208,358.16
  6. Step 6: Final answer
    x = 155,754.26

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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.