Home / 207,688.10-286,467.26-127,155.40

Finding the Fourth Proportional to 207,688.10, 286,467.26 and 127,155.40

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Solution

The fourth proportional to 207,688.10, 286,467.26 and 127,155.40 is: 175,387.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,688.10 : 286,467.26 = 127,155.40 : x
  2. Step 2: Convert to fraction form
    207,688.10/286,467.26 = 127,155.40/x
  3. Step 3: Cross multiply
    207,688.10x = 286,467.26 × 127,155.40
  4. Step 4: Simplify right side
    207,688.10x = 36,425,857,680.26
  5. Step 5: Solve for x
    x = 36,425,857,680.26/207,688.10
  6. Step 6: Final answer
    x = 175,387.32

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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.