Home / 158,228.84-218,312.60-90,221.01

Finding the Fourth Proportional to 158,228.84, 218,312.60 and 90,221.01

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Solution

The fourth proportional to 158,228.84, 218,312.60 and 90,221.01 is: 124,480.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,228.84 : 218,312.60 = 90,221.01 : x
  2. Step 2: Convert to fraction form
    158,228.84/218,312.60 = 90,221.01/x
  3. Step 3: Cross multiply
    158,228.84x = 218,312.60 × 90,221.01
  4. Step 4: Simplify right side
    158,228.84x = 19,696,382,816.62
  5. Step 5: Solve for x
    x = 19,696,382,816.62/158,228.84
  6. Step 6: Final answer
    x = 124,480.36

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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.