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Finding the Fourth Proportional to 134,143, 185,117.36 and 77,558.04

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Solution

The fourth proportional to 134,143, 185,117.36 and 77,558.04 is: 107,030.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,143 : 185,117.36 = 77,558.04 : x
  2. Step 2: Convert to fraction form
    134,143/185,117.36 = 77,558.04/x
  3. Step 3: Cross multiply
    134,143x = 185,117.36 × 77,558.04
  4. Step 4: Simplify right side
    134,143x = 14,357,339,611.57
  5. Step 5: Solve for x
    x = 14,357,339,611.57/134,143
  6. Step 6: Final answer
    x = 107,030.11

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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.