Home / 124,069.36-171,142.80-78,055.84

Finding the Fourth Proportional to 124,069.36, 171,142.80 and 78,055.84

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Solution

The fourth proportional to 124,069.36, 171,142.80 and 78,055.84 is: 107,671.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,069.36 : 171,142.80 = 78,055.84 : x
  2. Step 2: Convert to fraction form
    124,069.36/171,142.80 = 78,055.84/x
  3. Step 3: Cross multiply
    124,069.36x = 171,142.80 × 78,055.84
  4. Step 4: Simplify right side
    124,069.36x = 13,358,695,013.95
  5. Step 5: Solve for x
    x = 13,358,695,013.95/124,069.36
  6. Step 6: Final answer
    x = 107,671.19

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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.