Home / 124,307.65-186,488.48-45,421.75

Finding the Fourth Proportional to 124,307.65, 186,488.48 and 45,421.75

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Solution

The fourth proportional to 124,307.65, 186,488.48 and 45,421.75 is: 68,142.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,307.65 : 186,488.48 = 45,421.75 : x
  2. Step 2: Convert to fraction form
    124,307.65/186,488.48 = 45,421.75/x
  3. Step 3: Cross multiply
    124,307.65x = 186,488.48 × 45,421.75
  4. Step 4: Simplify right side
    124,307.65x = 8,470,633,116.44
  5. Step 5: Solve for x
    x = 8,470,633,116.44/124,307.65
  6. Step 6: Final answer
    x = 68,142.49

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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.