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Finding the Fourth Proportional to 145,386.79, 218,134.88 and 50,624.08

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Solution

The fourth proportional to 145,386.79, 218,134.88 and 50,624.08 is: 75,955.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,386.79 : 218,134.88 = 50,624.08 : x
  2. Step 2: Convert to fraction form
    145,386.79/218,134.88 = 50,624.08/x
  3. Step 3: Cross multiply
    145,386.79x = 218,134.88 × 50,624.08
  4. Step 4: Simplify right side
    145,386.79x = 11,042,877,615.91
  5. Step 5: Solve for x
    x = 11,042,877,615.91/145,386.79
  6. Step 6: Final answer
    x = 75,955.16

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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.