Home / 134,606.10-201,666.15-78,400.20

Finding the Fourth Proportional to 134,606.10, 201,666.15 and 78,400.20

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Solution

The fourth proportional to 134,606.10, 201,666.15 and 78,400.20 is: 117,458.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,606.10 : 201,666.15 = 78,400.20 : x
  2. Step 2: Convert to fraction form
    134,606.10/201,666.15 = 78,400.20/x
  3. Step 3: Cross multiply
    134,606.10x = 201,666.15 × 78,400.20
  4. Step 4: Simplify right side
    134,606.10x = 15,810,666,493.23
  5. Step 5: Solve for x
    x = 15,810,666,493.23/134,606.10
  6. Step 6: Final answer
    x = 117,458.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.