Home / 115,372.17-159,213.51-65,071.17

Finding the Fourth Proportional to 115,372.17, 159,213.51 and 65,071.17

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Solution

The fourth proportional to 115,372.17, 159,213.51 and 65,071.17 is: 89,798.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,372.17 : 159,213.51 = 65,071.17 : x
  2. Step 2: Convert to fraction form
    115,372.17/159,213.51 = 65,071.17/x
  3. Step 3: Cross multiply
    115,372.17x = 159,213.51 × 65,071.17
  4. Step 4: Simplify right side
    115,372.17x = 10,360,209,375.51
  5. Step 5: Solve for x
    x = 10,360,209,375.51/115,372.17
  6. Step 6: Final answer
    x = 89,798.17

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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.