Home / 205,588.18-308,332.89-70,636.60

Finding the Fourth Proportional to 205,588.18, 308,332.89 and 70,636.60

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Solution

The fourth proportional to 205,588.18, 308,332.89 and 70,636.60 is: 105,937.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,588.18 : 308,332.89 = 70,636.60 : x
  2. Step 2: Convert to fraction form
    205,588.18/308,332.89 = 70,636.60/x
  3. Step 3: Cross multiply
    205,588.18x = 308,332.89 × 70,636.60
  4. Step 4: Simplify right side
    205,588.18x = 21,779,587,017.77
  5. Step 5: Solve for x
    x = 21,779,587,017.77/205,588.18
  6. Step 6: Final answer
    x = 105,937.93

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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.