Home / 115,031.60-158,740.50-64,044.35

Finding the Fourth Proportional to 115,031.60, 158,740.50 and 64,044.35

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Solution

The fourth proportional to 115,031.60, 158,740.50 and 64,044.35 is: 88,379.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,031.60 : 158,740.50 = 64,044.35 : x
  2. Step 2: Convert to fraction form
    115,031.60/158,740.50 = 64,044.35/x
  3. Step 3: Cross multiply
    115,031.60x = 158,740.50 × 64,044.35
  4. Step 4: Simplify right side
    115,031.60x = 10,166,432,141.18
  5. Step 5: Solve for x
    x = 10,166,432,141.18/115,031.60
  6. Step 6: Final answer
    x = 88,379.47

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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.