Home / 117,613.35-162,332.10-72,330.30

Finding the Fourth Proportional to 117,613.35, 162,332.10 and 72,330.30

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Solution

The fourth proportional to 117,613.35, 162,332.10 and 72,330.30 is: 99,831.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,613.35 : 162,332.10 = 72,330.30 : x
  2. Step 2: Convert to fraction form
    117,613.35/162,332.10 = 72,330.30/x
  3. Step 3: Cross multiply
    117,613.35x = 162,332.10 × 72,330.30
  4. Step 4: Simplify right side
    117,613.35x = 11,741,529,492.63
  5. Step 5: Solve for x
    x = 11,741,529,492.63/117,613.35
  6. Step 6: Final answer
    x = 99,831.60

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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.