Home / 203,008.03-280,143.93-112,364.17

Finding the Fourth Proportional to 203,008.03, 280,143.93 and 112,364.17

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Solution

The fourth proportional to 203,008.03, 280,143.93 and 112,364.17 is: 155,058.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,008.03 : 280,143.93 = 112,364.17 : x
  2. Step 2: Convert to fraction form
    203,008.03/280,143.93 = 112,364.17/x
  3. Step 3: Cross multiply
    203,008.03x = 280,143.93 × 112,364.17
  4. Step 4: Simplify right side
    203,008.03x = 31,478,139,895.99
  5. Step 5: Solve for x
    x = 31,478,139,895.99/203,008.03
  6. Step 6: Final answer
    x = 155,058.60

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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.