Home / 124,310.80-186,466.20-77,071.60

Finding the Fourth Proportional to 124,310.80, 186,466.20 and 77,071.60

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Solution

The fourth proportional to 124,310.80, 186,466.20 and 77,071.60 is: 115,607.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,310.80 : 186,466.20 = 77,071.60 : x
  2. Step 2: Convert to fraction form
    124,310.80/186,466.20 = 77,071.60/x
  3. Step 3: Cross multiply
    124,310.80x = 186,466.20 × 77,071.60
  4. Step 4: Simplify right side
    124,310.80x = 14,371,248,379.92
  5. Step 5: Solve for x
    x = 14,371,248,379.92/124,310.80
  6. Step 6: Final answer
    x = 115,607.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.