Home / 160,474.02-221,457.63-87,880

Finding the Fourth Proportional to 160,474.02, 221,457.63 and 87,880

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Solution

The fourth proportional to 160,474.02, 221,457.63 and 87,880 is: 121,276.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,474.02 : 221,457.63 = 87,880 : x
  2. Step 2: Convert to fraction form
    160,474.02/221,457.63 = 87,880/x
  3. Step 3: Cross multiply
    160,474.02x = 221,457.63 × 87,880
  4. Step 4: Simplify right side
    160,474.02x = 19,461,696,524.40
  5. Step 5: Solve for x
    x = 19,461,696,524.40/160,474.02
  6. Step 6: Final answer
    x = 121,276.31

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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.