Home / 145,611.04-218,416.30-45,779.94

Finding the Fourth Proportional to 145,611.04, 218,416.30 and 45,779.94

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Solution

The fourth proportional to 145,611.04, 218,416.30 and 45,779.94 is: 68,669.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,611.04 : 218,416.30 = 45,779.94 : x
  2. Step 2: Convert to fraction form
    145,611.04/218,416.30 = 45,779.94/x
  3. Step 3: Cross multiply
    145,611.04x = 218,416.30 × 45,779.94
  4. Step 4: Simplify right side
    145,611.04x = 9,999,085,109.02
  5. Step 5: Solve for x
    x = 9,999,085,109.02/145,611.04
  6. Step 6: Final answer
    x = 68,669.83

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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.