Home / 125,461.04-173,217.30-77,765

Finding the Fourth Proportional to 125,461.04, 173,217.30 and 77,765

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Solution

The fourth proportional to 125,461.04, 173,217.30 and 77,765 is: 107,365.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,461.04 : 173,217.30 = 77,765 : x
  2. Step 2: Convert to fraction form
    125,461.04/173,217.30 = 77,765/x
  3. Step 3: Cross multiply
    125,461.04x = 173,217.30 × 77,765
  4. Step 4: Simplify right side
    125,461.04x = 13,470,243,334.50
  5. Step 5: Solve for x
    x = 13,470,243,334.50/125,461.04
  6. Step 6: Final answer
    x = 107,365.95

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1.5x scale

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.