Home / 115,569.12-159,486.48-64,585.92

Finding the Fourth Proportional to 115,569.12, 159,486.48 and 64,585.92

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Solution

The fourth proportional to 115,569.12, 159,486.48 and 64,585.92 is: 89,129.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,569.12 : 159,486.48 = 64,585.92 : x
  2. Step 2: Convert to fraction form
    115,569.12/159,486.48 = 64,585.92/x
  3. Step 3: Cross multiply
    115,569.12x = 159,486.48 × 64,585.92
  4. Step 4: Simplify right side
    115,569.12x = 10,300,581,038.36
  5. Step 5: Solve for x
    x = 10,300,581,038.36/115,569.12
  6. Step 6: Final answer
    x = 89,129.18

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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.