Home / 142,938.96-197,191.08-89,237.22

Finding the Fourth Proportional to 142,938.96, 197,191.08 and 89,237.22

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Solution

The fourth proportional to 142,938.96, 197,191.08 and 89,237.22 is: 123,106.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,938.96 : 197,191.08 = 89,237.22 : x
  2. Step 2: Convert to fraction form
    142,938.96/197,191.08 = 89,237.22/x
  3. Step 3: Cross multiply
    142,938.96x = 197,191.08 × 89,237.22
  4. Step 4: Simplify right side
    142,938.96x = 17,596,783,788.00
  5. Step 5: Solve for x
    x = 17,596,783,788.00/142,938.96
  6. Step 6: Final answer
    x = 123,106.98

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1.5x scale

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.