Home / 88,708.40-122,209.65-61,802.22

Finding the Fourth Proportional to 88,708.40, 122,209.65 and 61,802.22

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Solution

The fourth proportional to 88,708.40, 122,209.65 and 61,802.22 is: 85,142.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,708.40 : 122,209.65 = 61,802.22 : x
  2. Step 2: Convert to fraction form
    88,708.40/122,209.65 = 61,802.22/x
  3. Step 3: Cross multiply
    88,708.40x = 122,209.65 × 61,802.22
  4. Step 4: Simplify right side
    88,708.40x = 7,552,827,675.42
  5. Step 5: Solve for x
    x = 7,552,827,675.42/88,708.40
  6. Step 6: Final answer
    x = 85,142.20

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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.