Home / 124,055.10-171,123.14-78,041.56

Finding the Fourth Proportional to 124,055.10, 171,123.14 and 78,041.56

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Solution

The fourth proportional to 124,055.10, 171,123.14 and 78,041.56 is: 107,651.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,055.10 : 171,123.14 = 78,041.56 : x
  2. Step 2: Convert to fraction form
    124,055.10/171,123.14 = 78,041.56/x
  3. Step 3: Cross multiply
    124,055.10x = 171,123.14 × 78,041.56
  4. Step 4: Simplify right side
    124,055.10x = 13,354,716,797.70
  5. Step 5: Solve for x
    x = 13,354,716,797.70/124,055.10
  6. Step 6: Final answer
    x = 107,651.50

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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.