Home / 118,381.77-163,364.79-64,665.40

Finding the Fourth Proportional to 118,381.77, 163,364.79 and 64,665.40

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Solution

The fourth proportional to 118,381.77, 163,364.79 and 64,665.40 is: 89,237.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,381.77 : 163,364.79 = 64,665.40 : x
  2. Step 2: Convert to fraction form
    118,381.77/163,364.79 = 64,665.40/x
  3. Step 3: Cross multiply
    118,381.77x = 163,364.79 × 64,665.40
  4. Step 4: Simplify right side
    118,381.77x = 10,564,049,491.27
  5. Step 5: Solve for x
    x = 10,564,049,491.27/118,381.77
  6. Step 6: Final answer
    x = 89,237.13

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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.