Home / 105,427.10-158,140.65-30,547.29

Finding the Fourth Proportional to 105,427.10, 158,140.65 and 30,547.29

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Solution

The fourth proportional to 105,427.10, 158,140.65 and 30,547.29 is: 45,820.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,427.10 : 158,140.65 = 30,547.29 : x
  2. Step 2: Convert to fraction form
    105,427.10/158,140.65 = 30,547.29/x
  3. Step 3: Cross multiply
    105,427.10x = 158,140.65 × 30,547.29
  4. Step 4: Simplify right side
    105,427.10x = 4,830,769,003.92
  5. Step 5: Solve for x
    x = 4,830,769,003.92/105,427.10
  6. Step 6: Final answer
    x = 45,820.94

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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.