Home / 112,496.13-155,246.31-76,208.67

Finding the Fourth Proportional to 112,496.13, 155,246.31 and 76,208.67

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Solution

The fourth proportional to 112,496.13, 155,246.31 and 76,208.67 is: 105,169.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,496.13 : 155,246.31 = 76,208.67 : x
  2. Step 2: Convert to fraction form
    112,496.13/155,246.31 = 76,208.67/x
  3. Step 3: Cross multiply
    112,496.13x = 155,246.31 × 76,208.67
  4. Step 4: Simplify right side
    112,496.13x = 11,831,114,807.51
  5. Step 5: Solve for x
    x = 11,831,114,807.51/112,496.13
  6. Step 6: Final answer
    x = 105,169.08

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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.