Home / 135,317.04-186,746.85-74,890.20

Finding the Fourth Proportional to 135,317.04, 186,746.85 and 74,890.20

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Solution

The fourth proportional to 135,317.04, 186,746.85 and 74,890.20 is: 103,353.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,317.04 : 186,746.85 = 74,890.20 : x
  2. Step 2: Convert to fraction form
    135,317.04/186,746.85 = 74,890.20/x
  3. Step 3: Cross multiply
    135,317.04x = 186,746.85 × 74,890.20
  4. Step 4: Simplify right side
    135,317.04x = 13,985,508,945.87
  5. Step 5: Solve for x
    x = 13,985,508,945.87/135,317.04
  6. Step 6: Final answer
    x = 103,353.64

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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.