Home / 116,920.95-161,333.01-65,931.45

Finding the Fourth Proportional to 116,920.95, 161,333.01 and 65,931.45

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Solution

The fourth proportional to 116,920.95, 161,333.01 and 65,931.45 is: 90,975.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,920.95 : 161,333.01 = 65,931.45 : x
  2. Step 2: Convert to fraction form
    116,920.95/161,333.01 = 65,931.45/x
  3. Step 3: Cross multiply
    116,920.95x = 161,333.01 × 65,931.45
  4. Step 4: Simplify right side
    116,920.95x = 10,636,919,282.16
  5. Step 5: Solve for x
    x = 10,636,919,282.16/116,920.95
  6. Step 6: Final answer
    x = 90,975.31

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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.