Home / 145,060.02-217,676.30-78,498.81

Finding the Fourth Proportional to 145,060.02, 217,676.30 and 78,498.81

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Solution

The fourth proportional to 145,060.02, 217,676.30 and 78,498.81 is: 117,794.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,060.02 : 217,676.30 = 78,498.81 : x
  2. Step 2: Convert to fraction form
    145,060.02/217,676.30 = 78,498.81/x
  3. Step 3: Cross multiply
    145,060.02x = 217,676.30 × 78,498.81
  4. Step 4: Simplify right side
    145,060.02x = 17,087,330,122.71
  5. Step 5: Solve for x
    x = 17,087,330,122.71/145,060.02
  6. Step 6: Final answer
    x = 117,794.90

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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.