Home / 124,686.18-172,068.02-70,974.65

Finding the Fourth Proportional to 124,686.18, 172,068.02 and 70,974.65

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Solution

The fourth proportional to 124,686.18, 172,068.02 and 70,974.65 is: 97,945.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,686.18 : 172,068.02 = 70,974.65 : x
  2. Step 2: Convert to fraction form
    124,686.18/172,068.02 = 70,974.65/x
  3. Step 3: Cross multiply
    124,686.18x = 172,068.02 × 70,974.65
  4. Step 4: Simplify right side
    124,686.18x = 12,212,467,495.69
  5. Step 5: Solve for x
    x = 12,212,467,495.69/124,686.18
  6. Step 6: Final answer
    x = 97,945.64

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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.