Home / 208,126.57-287,215.02-112,633.34

Finding the Fourth Proportional to 208,126.57, 287,215.02 and 112,633.34

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Solution

The fourth proportional to 208,126.57, 287,215.02 and 112,633.34 is: 155,434.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,126.57 : 287,215.02 = 112,633.34 : x
  2. Step 2: Convert to fraction form
    208,126.57/287,215.02 = 112,633.34/x
  3. Step 3: Cross multiply
    208,126.57x = 287,215.02 × 112,633.34
  4. Step 4: Simplify right side
    208,126.57x = 32,349,985,001.53
  5. Step 5: Solve for x
    x = 32,349,985,001.53/208,126.57
  6. Step 6: Final answer
    x = 155,434.19

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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.