Home / 124,417.40-186,626.10-77,070.20

Finding the Fourth Proportional to 124,417.40, 186,626.10 and 77,070.20

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Solution

The fourth proportional to 124,417.40, 186,626.10 and 77,070.20 is: 115,605.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,417.40 : 186,626.10 = 77,070.20 : x
  2. Step 2: Convert to fraction form
    124,417.40/186,626.10 = 77,070.20/x
  3. Step 3: Cross multiply
    124,417.40x = 186,626.10 × 77,070.20
  4. Step 4: Simplify right side
    124,417.40x = 14,383,310,852.22
  5. Step 5: Solve for x
    x = 14,383,310,852.22/124,417.40
  6. Step 6: Final answer
    x = 115,605.30

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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.