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Finding the Fourth Proportional to 160,425.63, 221,290.52 and 103,045.64

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Solution

The fourth proportional to 160,425.63, 221,290.52 and 103,045.64 is: 142,140.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,425.63 : 221,290.52 = 103,045.64 : x
  2. Step 2: Convert to fraction form
    160,425.63/221,290.52 = 103,045.64/x
  3. Step 3: Cross multiply
    160,425.63x = 221,290.52 × 103,045.64
  4. Step 4: Simplify right side
    160,425.63x = 22,803,021,637.65
  5. Step 5: Solve for x
    x = 22,803,021,637.65/160,425.63
  6. Step 6: Final answer
    x = 142,140.76

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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.