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Finding the Fourth Proportional to 134,152.56, 185,108.76 and 77,553

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Solution

The fourth proportional to 134,152.56, 185,108.76 and 77,553 is: 107,010.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,152.56 : 185,108.76 = 77,553 : x
  2. Step 2: Convert to fraction form
    134,152.56/185,108.76 = 77,553/x
  3. Step 3: Cross multiply
    134,152.56x = 185,108.76 × 77,553
  4. Step 4: Simplify right side
    134,152.56x = 14,355,739,664.28
  5. Step 5: Solve for x
    x = 14,355,739,664.28/134,152.56
  6. Step 6: Final answer
    x = 107,010.55

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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.