Home / 101,011.18-139,392.85-55,688.10

Finding the Fourth Proportional to 101,011.18, 139,392.85 and 55,688.10

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Solution

The fourth proportional to 101,011.18, 139,392.85 and 55,688.10 is: 76,848.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,011.18 : 139,392.85 = 55,688.10 : x
  2. Step 2: Convert to fraction form
    101,011.18/139,392.85 = 55,688.10/x
  3. Step 3: Cross multiply
    101,011.18x = 139,392.85 × 55,688.10
  4. Step 4: Simplify right side
    101,011.18x = 7,762,522,691.64
  5. Step 5: Solve for x
    x = 7,762,522,691.64/101,011.18
  6. Step 6: Final answer
    x = 76,848.16

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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.