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Finding the Fourth Proportional to 99,258, 148,888.08 and 25,386

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Solution

The fourth proportional to 99,258, 148,888.08 and 25,386 is: 38,079.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,258 : 148,888.08 = 25,386 : x
  2. Step 2: Convert to fraction form
    99,258/148,888.08 = 25,386/x
  3. Step 3: Cross multiply
    99,258x = 148,888.08 × 25,386
  4. Step 4: Simplify right side
    99,258x = 3,779,672,798.88
  5. Step 5: Solve for x
    x = 3,779,672,798.88/99,258
  6. Step 6: Final answer
    x = 38,079.28

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.