Home / 112,547.52-155,363.40-70,127.02

Finding the Fourth Proportional to 112,547.52, 155,363.40 and 70,127.02

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Solution

The fourth proportional to 112,547.52, 155,363.40 and 70,127.02 is: 96,805.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,547.52 : 155,363.40 = 70,127.02 : x
  2. Step 2: Convert to fraction form
    112,547.52/155,363.40 = 70,127.02/x
  3. Step 3: Cross multiply
    112,547.52x = 155,363.40 × 70,127.02
  4. Step 4: Simplify right side
    112,547.52x = 10,895,172,259.07
  5. Step 5: Solve for x
    x = 10,895,172,259.07/112,547.52
  6. Step 6: Final answer
    x = 96,805.09

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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.