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Finding the Fourth Proportional to 97,030.70, 133,858.08 and 70,130.60

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Solution

The fourth proportional to 97,030.70, 133,858.08 and 70,130.60 is: 96,748.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,030.70 : 133,858.08 = 70,130.60 : x
  2. Step 2: Convert to fraction form
    97,030.70/133,858.08 = 70,130.60/x
  3. Step 3: Cross multiply
    97,030.70x = 133,858.08 × 70,130.60
  4. Step 4: Simplify right side
    97,030.70x = 9,387,547,465.25
  5. Step 5: Solve for x
    x = 9,387,547,465.25/97,030.70
  6. Step 6: Final answer
    x = 96,748.22

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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.