Home / 153,925.50-212,446.08-90,263.28

Finding the Fourth Proportional to 153,925.50, 212,446.08 and 90,263.28

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Solution

The fourth proportional to 153,925.50, 212,446.08 and 90,263.28 is: 124,580.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,925.50 : 212,446.08 = 90,263.28 : x
  2. Step 2: Convert to fraction form
    153,925.50/212,446.08 = 90,263.28/x
  3. Step 3: Cross multiply
    153,925.50x = 212,446.08 × 90,263.28
  4. Step 4: Simplify right side
    153,925.50x = 19,176,080,003.94
  5. Step 5: Solve for x
    x = 19,176,080,003.94/153,925.50
  6. Step 6: Final answer
    x = 124,580.27

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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.