Home / 126,020.61-173,907.10-72,314.07

Finding the Fourth Proportional to 126,020.61, 173,907.10 and 72,314.07

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Solution

The fourth proportional to 126,020.61, 173,907.10 and 72,314.07 is: 99,792.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,020.61 : 173,907.10 = 72,314.07 : x
  2. Step 2: Convert to fraction form
    126,020.61/173,907.10 = 72,314.07/x
  3. Step 3: Cross multiply
    126,020.61x = 173,907.10 × 72,314.07
  4. Step 4: Simplify right side
    126,020.61x = 12,575,929,641.14
  5. Step 5: Solve for x
    x = 12,575,929,641.14/126,020.61
  6. Step 6: Final answer
    x = 99,792.64

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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.