Home / 117,402.03-162,029.43-77,149.08

Finding the Fourth Proportional to 117,402.03, 162,029.43 and 77,149.08

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Solution

The fourth proportional to 117,402.03, 162,029.43 and 77,149.08 is: 106,475.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,402.03 : 162,029.43 = 77,149.08 : x
  2. Step 2: Convert to fraction form
    117,402.03/162,029.43 = 77,149.08/x
  3. Step 3: Cross multiply
    117,402.03x = 162,029.43 × 77,149.08
  4. Step 4: Simplify right side
    117,402.03x = 12,500,421,457.42
  5. Step 5: Solve for x
    x = 12,500,421,457.42/117,402.03
  6. Step 6: Final answer
    x = 106,475.34

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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.