Home / 122,417.40-183,626.10-66,430.20

Finding the Fourth Proportional to 122,417.40, 183,626.10 and 66,430.20

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Solution

The fourth proportional to 122,417.40, 183,626.10 and 66,430.20 is: 99,645.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,417.40 : 183,626.10 = 66,430.20 : x
  2. Step 2: Convert to fraction form
    122,417.40/183,626.10 = 66,430.20/x
  3. Step 3: Cross multiply
    122,417.40x = 183,626.10 × 66,430.20
  4. Step 4: Simplify right side
    122,417.40x = 12,198,318,548.22
  5. Step 5: Solve for x
    x = 12,198,318,548.22/122,417.40
  6. Step 6: Final answer
    x = 99,645.30

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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.