Home / 122,823.81-169,517.07-77,526.45

Finding the Fourth Proportional to 122,823.81, 169,517.07 and 77,526.45

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Solution

The fourth proportional to 122,823.81, 169,517.07 and 77,526.45 is: 106,999.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,823.81 : 169,517.07 = 77,526.45 : x
  2. Step 2: Convert to fraction form
    122,823.81/169,517.07 = 77,526.45/x
  3. Step 3: Cross multiply
    122,823.81x = 169,517.07 × 77,526.45
  4. Step 4: Simplify right side
    122,823.81x = 13,142,056,651.50
  5. Step 5: Solve for x
    x = 13,142,056,651.50/122,823.81
  6. Step 6: Final answer
    x = 106,999.26

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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.