Home / 145,612.45-218,329.48-56,762.16

Finding the Fourth Proportional to 145,612.45, 218,329.48 and 56,762.16

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Solution

The fourth proportional to 145,612.45, 218,329.48 and 56,762.16 is: 85,108.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,612.45 : 218,329.48 = 56,762.16 : x
  2. Step 2: Convert to fraction form
    145,612.45/218,329.48 = 56,762.16/x
  3. Step 3: Cross multiply
    145,612.45x = 218,329.48 × 56,762.16
  4. Step 4: Simplify right side
    145,612.45x = 12,392,852,128.69
  5. Step 5: Solve for x
    x = 12,392,852,128.69/145,612.45
  6. Step 6: Final answer
    x = 85,108.46

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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.