Home / 102,547.61-141,515.73-56,607.29

Finding the Fourth Proportional to 102,547.61, 141,515.73 and 56,607.29

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Solution

The fourth proportional to 102,547.61, 141,515.73 and 56,607.29 is: 78,118.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,547.61 : 141,515.73 = 56,607.29 : x
  2. Step 2: Convert to fraction form
    102,547.61/141,515.73 = 56,607.29/x
  3. Step 3: Cross multiply
    102,547.61x = 141,515.73 × 56,607.29
  4. Step 4: Simplify right side
    102,547.61x = 8,010,821,260.09
  5. Step 5: Solve for x
    x = 8,010,821,260.09/102,547.61
  6. Step 6: Final answer
    x = 78,118.07

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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.