Home / 160,478.72-221,442.75-88,840.80

Finding the Fourth Proportional to 160,478.72, 221,442.75 and 88,840.80

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Solution

The fourth proportional to 160,478.72, 221,442.75 and 88,840.80 is: 122,590.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,478.72 : 221,442.75 = 88,840.80 : x
  2. Step 2: Convert to fraction form
    160,478.72/221,442.75 = 88,840.80/x
  3. Step 3: Cross multiply
    160,478.72x = 221,442.75 × 88,840.80
  4. Step 4: Simplify right side
    160,478.72x = 19,673,151,064.20
  5. Step 5: Solve for x
    x = 19,673,151,064.20/160,478.72
  6. Step 6: Final answer
    x = 122,590.40

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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.