Home / 151,690.18-209,332.29-83,707.14

Finding the Fourth Proportional to 151,690.18, 209,332.29 and 83,707.14

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Solution

The fourth proportional to 151,690.18, 209,332.29 and 83,707.14 is: 115,515.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,690.18 : 209,332.29 = 83,707.14 : x
  2. Step 2: Convert to fraction form
    151,690.18/209,332.29 = 83,707.14/x
  3. Step 3: Cross multiply
    151,690.18x = 209,332.29 × 83,707.14
  4. Step 4: Simplify right side
    151,690.18x = 17,522,607,305.55
  5. Step 5: Solve for x
    x = 17,522,607,305.55/151,690.18
  6. Step 6: Final answer
    x = 115,515.77

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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.