Home / 134,570.03-185,705.77-74,139.28

Finding the Fourth Proportional to 134,570.03, 185,705.77 and 74,139.28

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Solution

The fourth proportional to 134,570.03, 185,705.77 and 74,139.28 is: 102,311.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,570.03 : 185,705.77 = 74,139.28 : x
  2. Step 2: Convert to fraction form
    134,570.03/185,705.77 = 74,139.28/x
  3. Step 3: Cross multiply
    134,570.03x = 185,705.77 × 74,139.28
  4. Step 4: Simplify right side
    134,570.03x = 13,768,092,079.65
  5. Step 5: Solve for x
    x = 13,768,092,079.65/134,570.03
  6. Step 6: Final answer
    x = 102,311.73

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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.