Home / 112,913.06-169,369.89-38,085.76

Finding the Fourth Proportional to 112,913.06, 169,369.89 and 38,085.76

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Solution

The fourth proportional to 112,913.06, 169,369.89 and 38,085.76 is: 57,128.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,913.06 : 169,369.89 = 38,085.76 : x
  2. Step 2: Convert to fraction form
    112,913.06/169,369.89 = 38,085.76/x
  3. Step 3: Cross multiply
    112,913.06x = 169,369.89 × 38,085.76
  4. Step 4: Simplify right side
    112,913.06x = 6,450,580,981.77
  5. Step 5: Solve for x
    x = 6,450,580,981.77/112,913.06
  6. Step 6: Final answer
    x = 57,128.74

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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.