Home / 145,113.37-217,628.73-56,347.90

Finding the Fourth Proportional to 145,113.37, 217,628.73 and 56,347.90

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Solution

The fourth proportional to 145,113.37, 217,628.73 and 56,347.90 is: 84,505.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,113.37 : 217,628.73 = 56,347.90 : x
  2. Step 2: Convert to fraction form
    145,113.37/217,628.73 = 56,347.90/x
  3. Step 3: Cross multiply
    145,113.37x = 217,628.73 × 56,347.90
  4. Step 4: Simplify right side
    145,113.37x = 12,262,921,915.17
  5. Step 5: Solve for x
    x = 12,262,921,915.17/145,113.37
  6. Step 6: Final answer
    x = 84,505.80

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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.