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Finding the Fourth Proportional to 154,903.76, 213,680.40 and 97,521.74

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Solution

The fourth proportional to 154,903.76, 213,680.40 and 97,521.74 is: 134,525.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,903.76 : 213,680.40 = 97,521.74 : x
  2. Step 2: Convert to fraction form
    154,903.76/213,680.40 = 97,521.74/x
  3. Step 3: Cross multiply
    154,903.76x = 213,680.40 × 97,521.74
  4. Step 4: Simplify right side
    154,903.76x = 20,838,484,411.90
  5. Step 5: Solve for x
    x = 20,838,484,411.90/154,903.76
  6. Step 6: Final answer
    x = 134,525.36

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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.