Home / 142,108.70-212,977.93-57,770.35

Finding the Fourth Proportional to 142,108.70, 212,977.93 and 57,770.35

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Solution

The fourth proportional to 142,108.70, 212,977.93 and 57,770.35 is: 86,580.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,108.70 : 212,977.93 = 57,770.35 : x
  2. Step 2: Convert to fraction form
    142,108.70/212,977.93 = 57,770.35/x
  3. Step 3: Cross multiply
    142,108.70x = 212,977.93 × 57,770.35
  4. Step 4: Simplify right side
    142,108.70x = 12,303,809,558.38
  5. Step 5: Solve for x
    x = 12,303,809,558.38/142,108.70
  6. Step 6: Final answer
    x = 86,580.27

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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.