Home / 105,373.18-145,440.66-88,350.40

Finding the Fourth Proportional to 105,373.18, 145,440.66 and 88,350.40

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Solution

The fourth proportional to 105,373.18, 145,440.66 and 88,350.40 is: 121,945.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,373.18 : 145,440.66 = 88,350.40 : x
  2. Step 2: Convert to fraction form
    105,373.18/145,440.66 = 88,350.40/x
  3. Step 3: Cross multiply
    105,373.18x = 145,440.66 × 88,350.40
  4. Step 4: Simplify right side
    105,373.18x = 12,849,740,487.26
  5. Step 5: Solve for x
    x = 12,849,740,487.26/105,373.18
  6. Step 6: Final answer
    x = 121,945.08

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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.