Home / 158,384.16-218,564.44-90,404.64

Finding the Fourth Proportional to 158,384.16, 218,564.44 and 90,404.64

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Solution

The fourth proportional to 158,384.16, 218,564.44 and 90,404.64 is: 124,755.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,384.16 : 218,564.44 = 90,404.64 : x
  2. Step 2: Convert to fraction form
    158,384.16/218,564.44 = 90,404.64/x
  3. Step 3: Cross multiply
    158,384.16x = 218,564.44 × 90,404.64
  4. Step 4: Simplify right side
    158,384.16x = 19,759,239,515.00
  5. Step 5: Solve for x
    x = 19,759,239,515.00/158,384.16
  6. Step 6: Final answer
    x = 124,755.15

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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.