Home / 160,345.21-221,267.17-88,721.64

Finding the Fourth Proportional to 160,345.21, 221,267.17 and 88,721.64

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Solution

The fourth proportional to 160,345.21, 221,267.17 and 88,721.64 is: 122,430.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,345.21 : 221,267.17 = 88,721.64 : x
  2. Step 2: Convert to fraction form
    160,345.21/221,267.17 = 88,721.64/x
  3. Step 3: Cross multiply
    160,345.21x = 221,267.17 × 88,721.64
  4. Step 4: Simplify right side
    160,345.21x = 19,631,186,200.56
  5. Step 5: Solve for x
    x = 19,631,186,200.56/160,345.21
  6. Step 6: Final answer
    x = 122,430.76

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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.