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Finding the Fourth Proportional to 153,877.76, 230,814.23 and 78,954.66

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Solution

The fourth proportional to 153,877.76, 230,814.23 and 78,954.66 is: 118,430.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,877.76 : 230,814.23 = 78,954.66 : x
  2. Step 2: Convert to fraction form
    153,877.76/230,814.23 = 78,954.66/x
  3. Step 3: Cross multiply
    153,877.76x = 230,814.23 × 78,954.66
  4. Step 4: Simplify right side
    153,877.76x = 18,223,859,052.81
  5. Step 5: Solve for x
    x = 18,223,859,052.81/153,877.76
  6. Step 6: Final answer
    x = 118,430.75

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1.5x scale

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.