Home / 118,433.34-163,433.16-64,720.17

Finding the Fourth Proportional to 118,433.34, 163,433.16 and 64,720.17

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Solution

The fourth proportional to 118,433.34, 163,433.16 and 64,720.17 is: 89,311.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,433.34 : 163,433.16 = 64,720.17 : x
  2. Step 2: Convert to fraction form
    118,433.34/163,433.16 = 64,720.17/x
  3. Step 3: Cross multiply
    118,433.34x = 163,433.16 × 64,720.17
  4. Step 4: Simplify right side
    118,433.34x = 10,577,421,898.84
  5. Step 5: Solve for x
    x = 10,577,421,898.84/118,433.34
  6. Step 6: Final answer
    x = 89,311.18

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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.