Home / 170,663.76-235,515.60-99,085.68

Finding the Fourth Proportional to 170,663.76, 235,515.60 and 99,085.68

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Solution

The fourth proportional to 170,663.76, 235,515.60 and 99,085.68 is: 136,738.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,663.76 : 235,515.60 = 99,085.68 : x
  2. Step 2: Convert to fraction form
    170,663.76/235,515.60 = 99,085.68/x
  3. Step 3: Cross multiply
    170,663.76x = 235,515.60 × 99,085.68
  4. Step 4: Simplify right side
    170,663.76x = 23,336,223,376.61
  5. Step 5: Solve for x
    x = 23,336,223,376.61/170,663.76
  6. Step 6: Final answer
    x = 136,738.01

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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.