Home / 145,810.72-201,218.80-82,148.48

Finding the Fourth Proportional to 145,810.72, 201,218.80 and 82,148.48

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Solution

The fourth proportional to 145,810.72, 201,218.80 and 82,148.48 is: 113,364.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,810.72 : 201,218.80 = 82,148.48 : x
  2. Step 2: Convert to fraction form
    145,810.72/201,218.80 = 82,148.48/x
  3. Step 3: Cross multiply
    145,810.72x = 201,218.80 × 82,148.48
  4. Step 4: Simplify right side
    145,810.72x = 16,529,818,567.42
  5. Step 5: Solve for x
    x = 16,529,818,567.42/145,810.72
  6. Step 6: Final answer
    x = 113,364.91

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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.