Home / 105,484,114.64-145,508,644.68-61,425,920.72

Finding the Fourth Proportional to 105,484,114.64, 145,508,644.68 and 61,425,920.72

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Solution

The fourth proportional to 105,484,114.64, 145,508,644.68 and 61,425,920.72 is: 84,733,161.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,484,114.64 : 145,508,644.68 = 61,425,920.72 : x
  2. Step 2: Convert to fraction form
    105,484,114.64/145,508,644.68 = 61,425,920.72/x
  3. Step 3: Cross multiply
    105,484,114.64x = 145,508,644.68 × 61,425,920.72
  4. Step 4: Simplify right side
    105,484,114.64x = 8,938,002,472,188,330
  5. Step 5: Solve for x
    x = 8,938,002,472,188,330/105,484,114.64
  6. Step 6: Final answer
    x = 84,733,161.03

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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.