Home / 103,448.12-142,774.62-61,011.32

Finding the Fourth Proportional to 103,448.12, 142,774.62 and 61,011.32

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Solution

The fourth proportional to 103,448.12, 142,774.62 and 61,011.32 is: 84,205.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,448.12 : 142,774.62 = 61,011.32 : x
  2. Step 2: Convert to fraction form
    103,448.12/142,774.62 = 61,011.32/x
  3. Step 3: Cross multiply
    103,448.12x = 142,774.62 × 61,011.32
  4. Step 4: Simplify right side
    103,448.12x = 8,710,868,028.70
  5. Step 5: Solve for x
    x = 8,710,868,028.70/103,448.12
  6. Step 6: Final answer
    x = 84,205.18

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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.