Home / 160,430.16-221,396.24-87,831.84

Finding the Fourth Proportional to 160,430.16, 221,396.24 and 87,831.84

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Solution

The fourth proportional to 160,430.16, 221,396.24 and 87,831.84 is: 121,209.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,430.16 : 221,396.24 = 87,831.84 : x
  2. Step 2: Convert to fraction form
    160,430.16/221,396.24 = 87,831.84/x
  3. Step 3: Cross multiply
    160,430.16x = 221,396.24 × 87,831.84
  4. Step 4: Simplify right side
    160,430.16x = 19,445,638,188.26
  5. Step 5: Solve for x
    x = 19,445,638,188.26/160,430.16
  6. Step 6: Final answer
    x = 121,209.37

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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.