Home / 105,294.06-145,303.65-57,547.75

Finding the Fourth Proportional to 105,294.06, 145,303.65 and 57,547.75

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Solution

The fourth proportional to 105,294.06, 145,303.65 and 57,547.75 is: 79,414.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,294.06 : 145,303.65 = 57,547.75 : x
  2. Step 2: Convert to fraction form
    105,294.06/145,303.65 = 57,547.75/x
  3. Step 3: Cross multiply
    105,294.06x = 145,303.65 × 57,547.75
  4. Step 4: Simplify right side
    105,294.06x = 8,361,898,124.29
  5. Step 5: Solve for x
    x = 8,361,898,124.29/105,294.06
  6. Step 6: Final answer
    x = 79,414.72

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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.