Home / 112,289.16-154,954.98-61,987.08

Finding the Fourth Proportional to 112,289.16, 154,954.98 and 61,987.08

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Solution

The fourth proportional to 112,289.16, 154,954.98 and 61,987.08 is: 85,539.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,289.16 : 154,954.98 = 61,987.08 : x
  2. Step 2: Convert to fraction form
    112,289.16/154,954.98 = 61,987.08/x
  3. Step 3: Cross multiply
    112,289.16x = 154,954.98 × 61,987.08
  4. Step 4: Simplify right side
    112,289.16x = 9,605,206,741.66
  5. Step 5: Solve for x
    x = 9,605,206,741.66/112,289.16
  6. Step 6: Final answer
    x = 85,539.93

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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.