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Finding the Fourth Proportional to 134,510.81, 185,617.52 and 74,070.03

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Solution

The fourth proportional to 134,510.81, 185,617.52 and 74,070.03 is: 102,212.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,510.81 : 185,617.52 = 74,070.03 : x
  2. Step 2: Convert to fraction form
    134,510.81/185,617.52 = 74,070.03/x
  3. Step 3: Cross multiply
    134,510.81x = 185,617.52 × 74,070.03
  4. Step 4: Simplify right side
    134,510.81x = 13,748,694,904.58
  5. Step 5: Solve for x
    x = 13,748,694,904.58/134,510.81
  6. Step 6: Final answer
    x = 102,212.57

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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.