Home / 145,705.10-218,427.98-56,938.41

Finding the Fourth Proportional to 145,705.10, 218,427.98 and 56,938.41

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Solution

The fourth proportional to 145,705.10, 218,427.98 and 56,938.41 is: 85,356.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,705.10 : 218,427.98 = 56,938.41 : x
  2. Step 2: Convert to fraction form
    145,705.10/218,427.98 = 56,938.41/x
  3. Step 3: Cross multiply
    145,705.10x = 218,427.98 × 56,938.41
  4. Step 4: Simplify right side
    145,705.10x = 12,436,941,596.02
  5. Step 5: Solve for x
    x = 12,436,941,596.02/145,705.10
  6. Step 6: Final answer
    x = 85,356.94

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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.