Home / 160,253.13-221,140.35-87,641.58

Finding the Fourth Proportional to 160,253.13, 221,140.35 and 87,641.58

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Solution

The fourth proportional to 160,253.13, 221,140.35 and 87,641.58 is: 120,940.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,253.13 : 221,140.35 = 87,641.58 : x
  2. Step 2: Convert to fraction form
    160,253.13/221,140.35 = 87,641.58/x
  3. Step 3: Cross multiply
    160,253.13x = 221,140.35 × 87,641.58
  4. Step 4: Simplify right side
    160,253.13x = 19,381,089,675.75
  5. Step 5: Solve for x
    x = 19,381,089,675.75/160,253.13
  6. Step 6: Final answer
    x = 120,940.48

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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.