Home / 145,877.20-218,812.60-40,693.20

Finding the Fourth Proportional to 145,877.20, 218,812.60 and 40,693.20

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Solution

The fourth proportional to 145,877.20, 218,812.60 and 40,693.20 is: 61,038.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,877.20 : 218,812.60 = 40,693.20 : x
  2. Step 2: Convert to fraction form
    145,877.20/218,812.60 = 40,693.20/x
  3. Step 3: Cross multiply
    145,877.20x = 218,812.60 × 40,693.20
  4. Step 4: Simplify right side
    145,877.20x = 8,904,184,894.32
  5. Step 5: Solve for x
    x = 8,904,184,894.32/145,877.20
  6. Step 6: Final answer
    x = 61,038.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.