Home / 118,492.20-163,521.18-70,749.72

Finding the Fourth Proportional to 118,492.20, 163,521.18 and 70,749.72

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Solution

The fourth proportional to 118,492.20, 163,521.18 and 70,749.72 is: 97,635.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,492.20 : 163,521.18 = 70,749.72 : x
  2. Step 2: Convert to fraction form
    118,492.20/163,521.18 = 70,749.72/x
  3. Step 3: Cross multiply
    118,492.20x = 163,521.18 × 70,749.72
  4. Step 4: Simplify right side
    118,492.20x = 11,569,077,699.07
  5. Step 5: Solve for x
    x = 11,569,077,699.07/118,492.20
  6. Step 6: Final answer
    x = 97,635.77

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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.