Home / 115,457.73-159,330.11-64,471.34

Finding the Fourth Proportional to 115,457.73, 159,330.11 and 64,471.34

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Solution

The fourth proportional to 115,457.73, 159,330.11 and 64,471.34 is: 88,969.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,457.73 : 159,330.11 = 64,471.34 : x
  2. Step 2: Convert to fraction form
    115,457.73/159,330.11 = 64,471.34/x
  3. Step 3: Cross multiply
    115,457.73x = 159,330.11 × 64,471.34
  4. Step 4: Simplify right side
    115,457.73x = 10,272,224,575.04
  5. Step 5: Solve for x
    x = 10,272,224,575.04/115,457.73
  6. Step 6: Final answer
    x = 88,969.57

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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.