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Finding the Fourth Proportional to 99,492.48, 148,510.80 and 87,683.04

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Solution

The fourth proportional to 99,492.48, 148,510.80 and 87,683.04 is: 130,883.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,492.48 : 148,510.80 = 87,683.04 : x
  2. Step 2: Convert to fraction form
    99,492.48/148,510.80 = 87,683.04/x
  3. Step 3: Cross multiply
    99,492.48x = 148,510.80 × 87,683.04
  4. Step 4: Simplify right side
    99,492.48x = 13,021,878,416.83
  5. Step 5: Solve for x
    x = 13,021,878,416.83/99,492.48
  6. Step 6: Final answer
    x = 130,883.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.