Home / 103,857.29-143,341.73-99,124.27

Finding the Fourth Proportional to 103,857.29, 143,341.73 and 99,124.27

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Solution

The fourth proportional to 103,857.29, 143,341.73 and 99,124.27 is: 136,809.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,857.29 : 143,341.73 = 99,124.27 : x
  2. Step 2: Convert to fraction form
    103,857.29/143,341.73 = 99,124.27/x
  3. Step 3: Cross multiply
    103,857.29x = 143,341.73 × 99,124.27
  4. Step 4: Simplify right side
    103,857.29x = 14,208,644,346.79
  5. Step 5: Solve for x
    x = 14,208,644,346.79/103,857.29
  6. Step 6: Final answer
    x = 136,809.31

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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.