Home / 124,457.40-186,686.10-77,110.20

Finding the Fourth Proportional to 124,457.40, 186,686.10 and 77,110.20

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Solution

The fourth proportional to 124,457.40, 186,686.10 and 77,110.20 is: 115,665.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,457.40 : 186,686.10 = 77,110.20 : x
  2. Step 2: Convert to fraction form
    124,457.40/186,686.10 = 77,110.20/x
  3. Step 3: Cross multiply
    124,457.40x = 186,686.10 × 77,110.20
  4. Step 4: Simplify right side
    124,457.40x = 14,395,402,508.22
  5. Step 5: Solve for x
    x = 14,395,402,508.22/124,457.40
  6. Step 6: Final answer
    x = 115,665.30

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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.