Home / 122,623.98-169,215.63-71,641.44

Finding the Fourth Proportional to 122,623.98, 169,215.63 and 71,641.44

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Solution

The fourth proportional to 122,623.98, 169,215.63 and 71,641.44 is: 98,862.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,623.98 : 169,215.63 = 71,641.44 : x
  2. Step 2: Convert to fraction form
    122,623.98/169,215.63 = 71,641.44/x
  3. Step 3: Cross multiply
    122,623.98x = 169,215.63 × 71,641.44
  4. Step 4: Simplify right side
    122,623.98x = 12,122,851,403.71
  5. Step 5: Solve for x
    x = 12,122,851,403.71/122,623.98
  6. Step 6: Final answer
    x = 98,862.00

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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.