Home / 115,681.02-159,638.70-64,693.17

Finding the Fourth Proportional to 115,681.02, 159,638.70 and 64,693.17

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Solution

The fourth proportional to 115,681.02, 159,638.70 and 64,693.17 is: 89,275.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,681.02 : 159,638.70 = 64,693.17 : x
  2. Step 2: Convert to fraction form
    115,681.02/159,638.70 = 64,693.17/x
  3. Step 3: Cross multiply
    115,681.02x = 159,638.70 × 64,693.17
  4. Step 4: Simplify right side
    115,681.02x = 10,327,533,557.68
  5. Step 5: Solve for x
    x = 10,327,533,557.68/115,681.02
  6. Step 6: Final answer
    x = 89,275.96

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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.