Home / 98,145.45-147,239.10-56,045.70

Finding the Fourth Proportional to 98,145.45, 147,239.10 and 56,045.70

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Solution

The fourth proportional to 98,145.45, 147,239.10 and 56,045.70 is: 84,080.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,145.45 : 147,239.10 = 56,045.70 : x
  2. Step 2: Convert to fraction form
    98,145.45/147,239.10 = 56,045.70/x
  3. Step 3: Cross multiply
    98,145.45x = 147,239.10 × 56,045.70
  4. Step 4: Simplify right side
    98,145.45x = 8,252,118,426.87
  5. Step 5: Solve for x
    x = 8,252,118,426.87/98,145.45
  6. Step 6: Final answer
    x = 84,080.50

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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.