Home / 123,455.04-170,368.71-66,866.42

Finding the Fourth Proportional to 123,455.04, 170,368.71 and 66,866.42

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Solution

The fourth proportional to 123,455.04, 170,368.71 and 66,866.42 is: 92,276.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,455.04 : 170,368.71 = 66,866.42 : x
  2. Step 2: Convert to fraction form
    123,455.04/170,368.71 = 66,866.42/x
  3. Step 3: Cross multiply
    123,455.04x = 170,368.71 × 66,866.42
  4. Step 4: Simplify right side
    123,455.04x = 11,391,944,865.87
  5. Step 5: Solve for x
    x = 11,391,944,865.87/123,455.04
  6. Step 6: Final answer
    x = 92,276.06

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1.5x scale

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.