Home / 155,040.48-213,957.18-90,554.76

Finding the Fourth Proportional to 155,040.48, 213,957.18 and 90,554.76

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Solution

The fourth proportional to 155,040.48, 213,957.18 and 90,554.76 is: 124,966.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,040.48 : 213,957.18 = 90,554.76 : x
  2. Step 2: Convert to fraction form
    155,040.48/213,957.18 = 90,554.76/x
  3. Step 3: Cross multiply
    155,040.48x = 213,957.18 × 90,554.76
  4. Step 4: Simplify right side
    155,040.48x = 19,374,841,085.18
  5. Step 5: Solve for x
    x = 19,374,841,085.18/155,040.48
  6. Step 6: Final answer
    x = 124,966.34

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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.