Home / 101,190.04-139,641.60-55,870.84

Finding the Fourth Proportional to 101,190.04, 139,641.60 and 55,870.84

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Solution

The fourth proportional to 101,190.04, 139,641.60 and 55,870.84 is: 77,101.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,190.04 : 139,641.60 = 55,870.84 : x
  2. Step 2: Convert to fraction form
    101,190.04/139,641.60 = 55,870.84/x
  3. Step 3: Cross multiply
    101,190.04x = 139,641.60 × 55,870.84
  4. Step 4: Simplify right side
    101,190.04x = 7,801,893,490.94
  5. Step 5: Solve for x
    x = 7,801,893,490.94/101,190.04
  6. Step 6: Final answer
    x = 77,101.40

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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.