Home / 145,848.30-218,772.45-122,520.30

Finding the Fourth Proportional to 145,848.30, 218,772.45 and 122,520.30

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Solution

The fourth proportional to 145,848.30, 218,772.45 and 122,520.30 is: 183,780.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,848.30 : 218,772.45 = 122,520.30 : x
  2. Step 2: Convert to fraction form
    145,848.30/218,772.45 = 122,520.30/x
  3. Step 3: Cross multiply
    145,848.30x = 218,772.45 × 122,520.30
  4. Step 4: Simplify right side
    145,848.30x = 26,804,066,205.74
  5. Step 5: Solve for x
    x = 26,804,066,205.74/145,848.30
  6. Step 6: Final answer
    x = 183,780.45

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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.