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Finding the Fourth Proportional to 130,061, 179,484.18 and 70,445

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Solution

The fourth proportional to 130,061, 179,484.18 and 70,445 is: 97,214.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,061 : 179,484.18 = 70,445 : x
  2. Step 2: Convert to fraction form
    130,061/179,484.18 = 70,445/x
  3. Step 3: Cross multiply
    130,061x = 179,484.18 × 70,445
  4. Step 4: Simplify right side
    130,061x = 12,643,763,060.10
  5. Step 5: Solve for x
    x = 12,643,763,060.10/130,061
  6. Step 6: Final answer
    x = 97,214.10

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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.