Home / 115,108.20-158,848.74-64,807.56

Finding the Fourth Proportional to 115,108.20, 158,848.74 and 64,807.56

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Solution

The fourth proportional to 115,108.20, 158,848.74 and 64,807.56 is: 89,434.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,108.20 : 158,848.74 = 64,807.56 : x
  2. Step 2: Convert to fraction form
    115,108.20/158,848.74 = 64,807.56/x
  3. Step 3: Cross multiply
    115,108.20x = 158,848.74 × 64,807.56
  4. Step 4: Simplify right side
    115,108.20x = 10,294,599,248.47
  5. Step 5: Solve for x
    x = 10,294,599,248.47/115,108.20
  6. Step 6: Final answer
    x = 89,434.11

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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.