Home / 145,740.87-218,611.35-112,509.45

Finding the Fourth Proportional to 145,740.87, 218,611.35 and 112,509.45

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Solution

The fourth proportional to 145,740.87, 218,611.35 and 112,509.45 is: 168,764.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,740.87 : 218,611.35 = 112,509.45 : x
  2. Step 2: Convert to fraction form
    145,740.87/218,611.35 = 112,509.45/x
  3. Step 3: Cross multiply
    145,740.87x = 218,611.35 × 112,509.45
  4. Step 4: Simplify right side
    145,740.87x = 24,595,842,752.26
  5. Step 5: Solve for x
    x = 24,595,842,752.26/145,740.87
  6. Step 6: Final answer
    x = 168,764.21

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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.