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Finding the Fourth Proportional to 158,159.04, 218,264.72 and 86,537.48

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Solution

The fourth proportional to 158,159.04, 218,264.72 and 86,537.48 is: 119,424.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,159.04 : 218,264.72 = 86,537.48 : x
  2. Step 2: Convert to fraction form
    158,159.04/218,264.72 = 86,537.48/x
  3. Step 3: Cross multiply
    158,159.04x = 218,264.72 × 86,537.48
  4. Step 4: Simplify right side
    158,159.04x = 18,888,078,841.71
  5. Step 5: Solve for x
    x = 18,888,078,841.71/158,159.04
  6. Step 6: Final answer
    x = 119,424.59

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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.