Home / 160,461.03-221,439.60-87,866.98

Finding the Fourth Proportional to 160,461.03, 221,439.60 and 87,866.98

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Solution

The fourth proportional to 160,461.03, 221,439.60 and 87,866.98 is: 121,258.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,461.03 : 221,439.60 = 87,866.98 : x
  2. Step 2: Convert to fraction form
    160,461.03/221,439.60 = 87,866.98/x
  3. Step 3: Cross multiply
    160,461.03x = 221,439.60 × 87,866.98
  4. Step 4: Simplify right side
    160,461.03x = 19,457,228,904.41
  5. Step 5: Solve for x
    x = 19,457,228,904.41/160,461.03
  6. Step 6: Final answer
    x = 121,258.28

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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.