Home / 109,638.16-151,303.15-64,348.81

Finding the Fourth Proportional to 109,638.16, 151,303.15 and 64,348.81

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Solution

The fourth proportional to 109,638.16, 151,303.15 and 64,348.81 is: 88,802.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,638.16 : 151,303.15 = 64,348.81 : x
  2. Step 2: Convert to fraction form
    109,638.16/151,303.15 = 64,348.81/x
  3. Step 3: Cross multiply
    109,638.16x = 151,303.15 × 64,348.81
  4. Step 4: Simplify right side
    109,638.16x = 9,736,177,651.75
  5. Step 5: Solve for x
    x = 9,736,177,651.75/109,638.16
  6. Step 6: Final answer
    x = 88,802.82

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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.