Home / 145,390.20-218,117.70-113,897.40

Finding the Fourth Proportional to 145,390.20, 218,117.70 and 113,897.40

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Solution

The fourth proportional to 145,390.20, 218,117.70 and 113,897.40 is: 170,871.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,390.20 : 218,117.70 = 113,897.40 : x
  2. Step 2: Convert to fraction form
    145,390.20/218,117.70 = 113,897.40/x
  3. Step 3: Cross multiply
    145,390.20x = 218,117.70 × 113,897.40
  4. Step 4: Simplify right side
    145,390.20x = 24,843,038,923.98
  5. Step 5: Solve for x
    x = 24,843,038,923.98/145,390.20
  6. Step 6: Final answer
    x = 170,871.48

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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.