Home / 138,772.32-191,485.28-84,296.16

Finding the Fourth Proportional to 138,772.32, 191,485.28 and 84,296.16

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Solution

The fourth proportional to 138,772.32, 191,485.28 and 84,296.16 is: 116,316.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,772.32 : 191,485.28 = 84,296.16 : x
  2. Step 2: Convert to fraction form
    138,772.32/191,485.28 = 84,296.16/x
  3. Step 3: Cross multiply
    138,772.32x = 191,485.28 × 84,296.16
  4. Step 4: Simplify right side
    138,772.32x = 16,141,473,800.52
  5. Step 5: Solve for x
    x = 16,141,473,800.52/138,772.32
  6. Step 6: Final answer
    x = 116,316.24

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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.