Home / 158,688.47-238,031.67-40,358.78

Finding the Fourth Proportional to 158,688.47, 238,031.67 and 40,358.78

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Solution

The fourth proportional to 158,688.47, 238,031.67 and 40,358.78 is: 60,537.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,688.47 : 238,031.67 = 40,358.78 : x
  2. Step 2: Convert to fraction form
    158,688.47/238,031.67 = 40,358.78/x
  3. Step 3: Cross multiply
    158,688.47x = 238,031.67 × 40,358.78
  4. Step 4: Simplify right side
    158,688.47x = 9,606,668,397.64
  5. Step 5: Solve for x
    x = 9,606,668,397.64/158,688.47
  6. Step 6: Final answer
    x = 60,537.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.