Home / 112,399.29-155,109.21-61,410.93

Finding the Fourth Proportional to 112,399.29, 155,109.21 and 61,410.93

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Solution

The fourth proportional to 112,399.29, 155,109.21 and 61,410.93 is: 84,746.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,399.29 : 155,109.21 = 61,410.93 : x
  2. Step 2: Convert to fraction form
    112,399.29/155,109.21 = 61,410.93/x
  3. Step 3: Cross multiply
    112,399.29x = 155,109.21 × 61,410.93
  4. Step 4: Simplify right side
    112,399.29x = 9,525,400,837.67
  5. Step 5: Solve for x
    x = 9,525,400,837.67/112,399.29
  6. Step 6: Final answer
    x = 84,746.09

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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.