Home / 109,389.02-164,017.85-42,749.71

Finding the Fourth Proportional to 109,389.02, 164,017.85 and 42,749.71

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Solution

The fourth proportional to 109,389.02, 164,017.85 and 42,749.71 is: 64,098.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,389.02 : 164,017.85 = 42,749.71 : x
  2. Step 2: Convert to fraction form
    109,389.02/164,017.85 = 42,749.71/x
  3. Step 3: Cross multiply
    109,389.02x = 164,017.85 × 42,749.71
  4. Step 4: Simplify right side
    109,389.02x = 7,011,714,898.53
  5. Step 5: Solve for x
    x = 7,011,714,898.53/109,389.02
  6. Step 6: Final answer
    x = 64,098.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.