Home / 191,931.60-287,897.40-58,810.80

Finding the Fourth Proportional to 191,931.60, 287,897.40 and 58,810.80

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Solution

The fourth proportional to 191,931.60, 287,897.40 and 58,810.80 is: 88,216.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,931.60 : 287,897.40 = 58,810.80 : x
  2. Step 2: Convert to fraction form
    191,931.60/287,897.40 = 58,810.80/x
  3. Step 3: Cross multiply
    191,931.60x = 287,897.40 × 58,810.80
  4. Step 4: Simplify right side
    191,931.60x = 16,931,476,411.92
  5. Step 5: Solve for x
    x = 16,931,476,411.92/191,931.60
  6. Step 6: Final answer
    x = 88,216.20

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1.5x scale

Why These Related Problems?

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