Home / 75,623.10-113,434.65-69,920.70

Finding the Fourth Proportional to 75,623.10, 113,434.65 and 69,920.70

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Solution

The fourth proportional to 75,623.10, 113,434.65 and 69,920.70 is: 104,881.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,623.10 : 113,434.65 = 69,920.70 : x
  2. Step 2: Convert to fraction form
    75,623.10/113,434.65 = 69,920.70/x
  3. Step 3: Cross multiply
    75,623.10x = 113,434.65 × 69,920.70
  4. Step 4: Simplify right side
    75,623.10x = 7,931,430,132.26
  5. Step 5: Solve for x
    x = 7,931,430,132.26/75,623.10
  6. Step 6: Final answer
    x = 104,881.05

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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.