Home / 153,766.08-212,127.75-90,076.95

Finding the Fourth Proportional to 153,766.08, 212,127.75 and 90,076.95

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Solution

The fourth proportional to 153,766.08, 212,127.75 and 90,076.95 is: 124,265.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,766.08 : 212,127.75 = 90,076.95 : x
  2. Step 2: Convert to fraction form
    153,766.08/212,127.75 = 90,076.95/x
  3. Step 3: Cross multiply
    153,766.08x = 212,127.75 × 90,076.95
  4. Step 4: Simplify right side
    153,766.08x = 19,107,820,730.36
  5. Step 5: Solve for x
    x = 19,107,820,730.36/153,766.08
  6. Step 6: Final answer
    x = 124,265.51

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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.