Home / 158,365.29-218,483.28-90,386.04

Finding the Fourth Proportional to 158,365.29, 218,483.28 and 90,386.04

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Solution

The fourth proportional to 158,365.29, 218,483.28 and 90,386.04 is: 124,698.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,365.29 : 218,483.28 = 90,386.04 : x
  2. Step 2: Convert to fraction form
    158,365.29/218,483.28 = 90,386.04/x
  3. Step 3: Cross multiply
    158,365.29x = 218,483.28 × 90,386.04
  4. Step 4: Simplify right side
    158,365.29x = 19,747,838,485.41
  5. Step 5: Solve for x
    x = 19,747,838,485.41/158,365.29
  6. Step 6: Final answer
    x = 124,698.02

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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.