Home / 105,296.76-145,263.27-62,830.69

Finding the Fourth Proportional to 105,296.76, 145,263.27 and 62,830.69

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Solution

The fourth proportional to 105,296.76, 145,263.27 and 62,830.69 is: 86,678.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,296.76 : 145,263.27 = 62,830.69 : x
  2. Step 2: Convert to fraction form
    105,296.76/145,263.27 = 62,830.69/x
  3. Step 3: Cross multiply
    105,296.76x = 145,263.27 × 62,830.69
  4. Step 4: Simplify right side
    105,296.76x = 9,126,991,358.21
  5. Step 5: Solve for x
    x = 9,126,991,358.21/105,296.76
  6. Step 6: Final answer
    x = 86,678.75

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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.