Home / 153,888.04-212,366.37-90,226.90

Finding the Fourth Proportional to 153,888.04, 212,366.37 and 90,226.90

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Solution

The fourth proportional to 153,888.04, 212,366.37 and 90,226.90 is: 124,513.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,888.04 : 212,366.37 = 90,226.90 : x
  2. Step 2: Convert to fraction form
    153,888.04/212,366.37 = 90,226.90/x
  3. Step 3: Cross multiply
    153,888.04x = 212,366.37 × 90,226.90
  4. Step 4: Simplify right side
    153,888.04x = 19,161,159,229.35
  5. Step 5: Solve for x
    x = 19,161,159,229.35/153,888.04
  6. Step 6: Final answer
    x = 124,513.63

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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.