Home / 99,303.20-137,041.08-53,984.22

Finding the Fourth Proportional to 99,303.20, 137,041.08 and 53,984.22

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Solution

The fourth proportional to 99,303.20, 137,041.08 and 53,984.22 is: 74,499.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,303.20 : 137,041.08 = 53,984.22 : x
  2. Step 2: Convert to fraction form
    99,303.20/137,041.08 = 53,984.22/x
  3. Step 3: Cross multiply
    99,303.20x = 137,041.08 × 53,984.22
  4. Step 4: Simplify right side
    99,303.20x = 7,398,055,811.76
  5. Step 5: Solve for x
    x = 7,398,055,811.76/99,303.20
  6. Step 6: Final answer
    x = 74,499.68

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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.