Home / 102,019.02-140,783.43-56,695.86

Finding the Fourth Proportional to 102,019.02, 140,783.43 and 56,695.86

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Solution

The fourth proportional to 102,019.02, 140,783.43 and 56,695.86 is: 78,238.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,019.02 : 140,783.43 = 56,695.86 : x
  2. Step 2: Convert to fraction form
    102,019.02/140,783.43 = 56,695.86/x
  3. Step 3: Cross multiply
    102,019.02x = 140,783.43 × 56,695.86
  4. Step 4: Simplify right side
    102,019.02x = 7,981,837,637.60
  5. Step 5: Solve for x
    x = 7,981,837,637.60/102,019.02
  6. Step 6: Final answer
    x = 78,238.72

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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.