Home / 122,117.10-183,175.65-84,719.40

Finding the Fourth Proportional to 122,117.10, 183,175.65 and 84,719.40

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Solution

The fourth proportional to 122,117.10, 183,175.65 and 84,719.40 is: 127,079.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,117.10 : 183,175.65 = 84,719.40 : x
  2. Step 2: Convert to fraction form
    122,117.10/183,175.65 = 84,719.40/x
  3. Step 3: Cross multiply
    122,117.10x = 183,175.65 × 84,719.40
  4. Step 4: Simplify right side
    122,117.10x = 15,518,531,162.61
  5. Step 5: Solve for x
    x = 15,518,531,162.61/122,117.10
  6. Step 6: Final answer
    x = 127,079.10

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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.