Home / 103,918.68-143,402.40-58,595.40

Finding the Fourth Proportional to 103,918.68, 143,402.40 and 58,595.40

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Solution

The fourth proportional to 103,918.68, 143,402.40 and 58,595.40 is: 80,858.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,918.68 : 143,402.40 = 58,595.40 : x
  2. Step 2: Convert to fraction form
    103,918.68/143,402.40 = 58,595.40/x
  3. Step 3: Cross multiply
    103,918.68x = 143,402.40 × 58,595.40
  4. Step 4: Simplify right side
    103,918.68x = 8,402,720,988.96
  5. Step 5: Solve for x
    x = 8,402,720,988.96/103,918.68
  6. Step 6: Final answer
    x = 80,858.62

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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.