Home / 116,667.54-160,915.26-87,988.40

Finding the Fourth Proportional to 116,667.54, 160,915.26 and 87,988.40

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Solution

The fourth proportional to 116,667.54, 160,915.26 and 87,988.40 is: 121,359.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,667.54 : 160,915.26 = 87,988.40 : x
  2. Step 2: Convert to fraction form
    116,667.54/160,915.26 = 87,988.40/x
  3. Step 3: Cross multiply
    116,667.54x = 160,915.26 × 87,988.40
  4. Step 4: Simplify right side
    116,667.54x = 14,158,676,262.98
  5. Step 5: Solve for x
    x = 14,158,676,262.98/116,667.54
  6. Step 6: Final answer
    x = 121,359.17

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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.