Home / 191,172.07-286,708.90-78,884.20

Finding the Fourth Proportional to 191,172.07, 286,708.90 and 78,884.20

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Solution

The fourth proportional to 191,172.07, 286,708.90 and 78,884.20 is: 118,306.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,172.07 : 286,708.90 = 78,884.20 : x
  2. Step 2: Convert to fraction form
    191,172.07/286,708.90 = 78,884.20/x
  3. Step 3: Cross multiply
    191,172.07x = 286,708.90 × 78,884.20
  4. Step 4: Simplify right side
    191,172.07x = 22,616,802,209.38
  5. Step 5: Solve for x
    x = 22,616,802,209.38/191,172.07
  6. Step 6: Final answer
    x = 118,306.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.