Home / 158,349.48-218,518.08-90,365.20

Finding the Fourth Proportional to 158,349.48, 218,518.08 and 90,365.20

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Solution

The fourth proportional to 158,349.48, 218,518.08 and 90,365.20 is: 124,701.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,349.48 : 218,518.08 = 90,365.20 : x
  2. Step 2: Convert to fraction form
    158,349.48/218,518.08 = 90,365.20/x
  3. Step 3: Cross multiply
    158,349.48x = 218,518.08 × 90,365.20
  4. Step 4: Simplify right side
    158,349.48x = 19,746,430,002.82
  5. Step 5: Solve for x
    x = 19,746,430,002.82/158,349.48
  6. Step 6: Final answer
    x = 124,701.58

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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.