Home / 112,317.98-155,005.13-61,335.45

Finding the Fourth Proportional to 112,317.98, 155,005.13 and 61,335.45

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Solution

The fourth proportional to 112,317.98, 155,005.13 and 61,335.45 is: 84,646.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,317.98 : 155,005.13 = 61,335.45 : x
  2. Step 2: Convert to fraction form
    112,317.98/155,005.13 = 61,335.45/x
  3. Step 3: Cross multiply
    112,317.98x = 155,005.13 × 61,335.45
  4. Step 4: Simplify right side
    112,317.98x = 9,507,309,554.20
  5. Step 5: Solve for x
    x = 9,507,309,554.20/112,317.98
  6. Step 6: Final answer
    x = 84,646.38

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1.5x scale

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.