Home / 145,748.70-201,140.01-88,389.90

Finding the Fourth Proportional to 145,748.70, 201,140.01 and 88,389.90

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Solution

The fourth proportional to 145,748.70, 201,140.01 and 88,389.90 is: 121,982.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,748.70 : 201,140.01 = 88,389.90 : x
  2. Step 2: Convert to fraction form
    145,748.70/201,140.01 = 88,389.90/x
  3. Step 3: Cross multiply
    145,748.70x = 201,140.01 × 88,389.90
  4. Step 4: Simplify right side
    145,748.70x = 17,778,745,369.90
  5. Step 5: Solve for x
    x = 17,778,745,369.90/145,748.70
  6. Step 6: Final answer
    x = 121,982.19

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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.