Home / 83,017.23-123,878.36-74,071.08

Finding the Fourth Proportional to 83,017.23, 123,878.36 and 74,071.08

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Solution

The fourth proportional to 83,017.23, 123,878.36 and 74,071.08 is: 110,528.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,017.23 : 123,878.36 = 74,071.08 : x
  2. Step 2: Convert to fraction form
    83,017.23/123,878.36 = 74,071.08/x
  3. Step 3: Cross multiply
    83,017.23x = 123,878.36 × 74,071.08
  4. Step 4: Simplify right side
    83,017.23x = 9,175,803,543.47
  5. Step 5: Solve for x
    x = 9,175,803,543.47/83,017.23
  6. Step 6: Final answer
    x = 110,528.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.