Home / 93,157.18-128,642.30-59,176.62

Finding the Fourth Proportional to 93,157.18, 128,642.30 and 59,176.62

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Solution

The fourth proportional to 93,157.18, 128,642.30 and 59,176.62 is: 81,717.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,157.18 : 128,642.30 = 59,176.62 : x
  2. Step 2: Convert to fraction form
    93,157.18/128,642.30 = 59,176.62/x
  3. Step 3: Cross multiply
    93,157.18x = 128,642.30 × 59,176.62
  4. Step 4: Simplify right side
    93,157.18x = 7,612,616,503.03
  5. Step 5: Solve for x
    x = 7,612,616,503.03/93,157.18
  6. Step 6: Final answer
    x = 81,717.98

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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.