Home / 125,085.18-187,628.94-31,590.84

Finding the Fourth Proportional to 125,085.18, 187,628.94 and 31,590.84

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Solution

The fourth proportional to 125,085.18, 187,628.94 and 31,590.84 is: 47,386.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,085.18 : 187,628.94 = 31,590.84 : x
  2. Step 2: Convert to fraction form
    125,085.18/187,628.94 = 31,590.84/x
  3. Step 3: Cross multiply
    125,085.18x = 187,628.94 × 31,590.84
  4. Step 4: Simplify right side
    125,085.18x = 5,927,355,822.91
  5. Step 5: Solve for x
    x = 5,927,355,822.91/125,085.18
  6. Step 6: Final answer
    x = 47,386.56

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1.5x scale

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.