Home / 154,677.80-213,461.22-86,696.02

Finding the Fourth Proportional to 154,677.80, 213,461.22 and 86,696.02

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Solution

The fourth proportional to 154,677.80, 213,461.22 and 86,696.02 is: 119,643.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,677.80 : 213,461.22 = 86,696.02 : x
  2. Step 2: Convert to fraction form
    154,677.80/213,461.22 = 86,696.02/x
  3. Step 3: Cross multiply
    154,677.80x = 213,461.22 × 86,696.02
  4. Step 4: Simplify right side
    154,677.80x = 18,506,238,790.28
  5. Step 5: Solve for x
    x = 18,506,238,790.28/154,677.80
  6. Step 6: Final answer
    x = 119,643.79

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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.