Home / 145,779.15-201,176.23-81,252.55

Finding the Fourth Proportional to 145,779.15, 201,176.23 and 81,252.55

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Solution

The fourth proportional to 145,779.15, 201,176.23 and 81,252.55 is: 112,129.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,779.15 : 201,176.23 = 81,252.55 : x
  2. Step 2: Convert to fraction form
    145,779.15/201,176.23 = 81,252.55/x
  3. Step 3: Cross multiply
    145,779.15x = 201,176.23 × 81,252.55
  4. Step 4: Simplify right side
    145,779.15x = 16,346,081,686.89
  5. Step 5: Solve for x
    x = 16,346,081,686.89/145,779.15
  6. Step 6: Final answer
    x = 112,129.08

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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.