Home / 115,319.28-159,141.54-64,330.32

Finding the Fourth Proportional to 115,319.28, 159,141.54 and 64,330.32

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Solution

The fourth proportional to 115,319.28, 159,141.54 and 64,330.32 is: 88,776.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,319.28 : 159,141.54 = 64,330.32 : x
  2. Step 2: Convert to fraction form
    115,319.28/159,141.54 = 64,330.32/x
  3. Step 3: Cross multiply
    115,319.28x = 159,141.54 × 64,330.32
  4. Step 4: Simplify right side
    115,319.28x = 10,237,626,193.49
  5. Step 5: Solve for x
    x = 10,237,626,193.49/115,319.28
  6. Step 6: Final answer
    x = 88,776.36

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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.