Home / 158,370.66-218,555.04-90,386.28

Finding the Fourth Proportional to 158,370.66, 218,555.04 and 90,386.28

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Solution

The fourth proportional to 158,370.66, 218,555.04 and 90,386.28 is: 124,735.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,370.66 : 218,555.04 = 90,386.28 : x
  2. Step 2: Convert to fraction form
    158,370.66/218,555.04 = 90,386.28/x
  3. Step 3: Cross multiply
    158,370.66x = 218,555.04 × 90,386.28
  4. Step 4: Simplify right side
    158,370.66x = 19,754,377,040.85
  5. Step 5: Solve for x
    x = 19,754,377,040.85/158,370.66
  6. Step 6: Final answer
    x = 124,735.08

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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.