Home / 103,800.48-143,207.64-61,329.12

Finding the Fourth Proportional to 103,800.48, 143,207.64 and 61,329.12

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Solution

The fourth proportional to 103,800.48, 143,207.64 and 61,329.12 is: 84,612.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,800.48 : 143,207.64 = 61,329.12 : x
  2. Step 2: Convert to fraction form
    103,800.48/143,207.64 = 61,329.12/x
  3. Step 3: Cross multiply
    103,800.48x = 143,207.64 × 61,329.12
  4. Step 4: Simplify right side
    103,800.48x = 8,782,798,538.48
  5. Step 5: Solve for x
    x = 8,782,798,538.48/103,800.48
  6. Step 6: Final answer
    x = 84,612.31

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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.