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Finding the Fourth Proportional to 153,987.78, 230,989.81 and 48,814.95

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Solution

The fourth proportional to 153,987.78, 230,989.81 and 48,814.95 is: 73,225.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,987.78 : 230,989.81 = 48,814.95 : x
  2. Step 2: Convert to fraction form
    153,987.78/230,989.81 = 48,814.95/x
  3. Step 3: Cross multiply
    153,987.78x = 230,989.81 × 48,814.95
  4. Step 4: Simplify right side
    153,987.78x = 11,275,754,748.67
  5. Step 5: Solve for x
    x = 11,275,754,748.67/153,987.78
  6. Step 6: Final answer
    x = 73,225.00

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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.