Home / 158,337.69-218,497.90-86,716.18

Finding the Fourth Proportional to 158,337.69, 218,497.90 and 86,716.18

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Solution

The fourth proportional to 158,337.69, 218,497.90 and 86,716.18 is: 119,663.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,337.69 : 218,497.90 = 86,716.18 : x
  2. Step 2: Convert to fraction form
    158,337.69/218,497.90 = 86,716.18/x
  3. Step 3: Cross multiply
    158,337.69x = 218,497.90 × 86,716.18
  4. Step 4: Simplify right side
    158,337.69x = 18,947,301,699.95
  5. Step 5: Solve for x
    x = 18,947,301,699.95/158,337.69
  6. Step 6: Final answer
    x = 119,663.88

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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.