Home / 158,152.80-218,241.36-90,160.32

Finding the Fourth Proportional to 158,152.80, 218,241.36 and 90,160.32

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Solution

The fourth proportional to 158,152.80, 218,241.36 and 90,160.32 is: 124,415.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,152.80 : 218,241.36 = 90,160.32 : x
  2. Step 2: Convert to fraction form
    158,152.80/218,241.36 = 90,160.32/x
  3. Step 3: Cross multiply
    158,152.80x = 218,241.36 × 90,160.32
  4. Step 4: Simplify right side
    158,152.80x = 19,676,710,854.84
  5. Step 5: Solve for x
    x = 19,676,710,854.84/158,152.80
  6. Step 6: Final answer
    x = 124,415.82

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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.