Home / 145,748.33-201,127.95-89,159.70

Finding the Fourth Proportional to 145,748.33, 201,127.95 and 89,159.70

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Solution

The fourth proportional to 145,748.33, 201,127.95 and 89,159.70 is: 123,037.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,748.33 : 201,127.95 = 89,159.70 : x
  2. Step 2: Convert to fraction form
    145,748.33/201,127.95 = 89,159.70/x
  3. Step 3: Cross multiply
    145,748.33x = 201,127.95 × 89,159.70
  4. Step 4: Simplify right side
    145,748.33x = 17,932,507,683.62
  5. Step 5: Solve for x
    x = 17,932,507,683.62/145,748.33
  6. Step 6: Final answer
    x = 123,037.48

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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.