Home / 105,557.36-158,335-45,628.24

Finding the Fourth Proportional to 105,557.36, 158,335 and 45,628.24

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Solution

The fourth proportional to 105,557.36, 158,335 and 45,628.24 is: 68,441.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,557.36 : 158,335 = 45,628.24 : x
  2. Step 2: Convert to fraction form
    105,557.36/158,335 = 45,628.24/x
  3. Step 3: Cross multiply
    105,557.36x = 158,335 × 45,628.24
  4. Step 4: Simplify right side
    105,557.36x = 7,224,547,380.40
  5. Step 5: Solve for x
    x = 7,224,547,380.40/105,557.36
  6. Step 6: Final answer
    x = 68,441.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.