Home / 187,119.81-280,749.42-112,293.63

Finding the Fourth Proportional to 187,119.81, 280,749.42 and 112,293.63

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Solution

The fourth proportional to 187,119.81, 280,749.42 and 112,293.63 is: 168,482.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,119.81 : 280,749.42 = 112,293.63 : x
  2. Step 2: Convert to fraction form
    187,119.81/280,749.42 = 112,293.63/x
  3. Step 3: Cross multiply
    187,119.81x = 280,749.42 × 112,293.63
  4. Step 4: Simplify right side
    187,119.81x = 31,526,371,492.19
  5. Step 5: Solve for x
    x = 31,526,371,492.19/187,119.81
  6. Step 6: Final answer
    x = 168,482.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.