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Finding the Fourth Proportional to 130,143, 179,597.34 and 70,527

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Solution

The fourth proportional to 130,143, 179,597.34 and 70,527 is: 97,327.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,143 : 179,597.34 = 70,527 : x
  2. Step 2: Convert to fraction form
    130,143/179,597.34 = 70,527/x
  3. Step 3: Cross multiply
    130,143x = 179,597.34 × 70,527
  4. Step 4: Simplify right side
    130,143x = 12,666,461,598.18
  5. Step 5: Solve for x
    x = 12,666,461,598.18/130,143
  6. Step 6: Final answer
    x = 97,327.26

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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.