Home / 124,205.99-186,312.04-45,320.20

Finding the Fourth Proportional to 124,205.99, 186,312.04 and 45,320.20

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Solution

The fourth proportional to 124,205.99, 186,312.04 and 45,320.20 is: 67,981.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,205.99 : 186,312.04 = 45,320.20 : x
  2. Step 2: Convert to fraction form
    124,205.99/186,312.04 = 45,320.20/x
  3. Step 3: Cross multiply
    124,205.99x = 186,312.04 × 45,320.20
  4. Step 4: Simplify right side
    124,205.99x = 8,443,698,915.21
  5. Step 5: Solve for x
    x = 8,443,698,915.21/124,205.99
  6. Step 6: Final answer
    x = 67,981.41

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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.